Process for selective recovery of relatively metals-free bitumen

Details Process for selective recovery of relatively metals-free bitumen Process for selective recovery of relatively metals-free bitumen

1978-11-08

1980-08-12

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

C10G 100

Patent

active

042172020

ABSTRACT:
A process for the selective recovery of tar sand bitumen from tar sands using a two-solvent system comprising a halogenated aliphatic solvent in combination with a second solvent selected from an oxygenated compound. The process provides for an inexpensive method for selectively removing substantially metal-free tar sand bitumen from tar sands. The bitumen so recovered renders the same amenable to catalytic desulfurization and upgrading processes.

REFERENCES:
patent: 2173842 (1939-09-01), Horner
patent: 3695354 (1972-10-01), Dilgren et al.
patent: 3941679 (1976-03-01), Smith et al.
patent: 4046668 (1977-09-01), Farcasin et al.

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